Titlebook: Estimating the Query Difficulty for Information Retrieval; David Carmel,Elad Yom-Tov Book 2010 Springer Nature Switzerland AG 2010

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Gajendra K. Verma,Kanka Mallickred at indexing time, can be exploited for prediction. In contrast, post-retrieval methods can additionally analyze the search results. Figure 3.1 presents a general taxonomy of existing prediction approaches.

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Book 2010 very well on average, the quality of results returned for some of the queries is poor. Thus, it is desirable that IR systems will be able to identify "difficult" queries so they can be handled properly. Understanding why some queries are inherently more difficult than others is essential for IR, an

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Estimating the Query Difficulty for Information Retrieval

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Book 2010ficulty in the IR field. It then describes a common methodology for evaluating the prediction quality of those estimators, and experiments with some of the predictors applied by various IR methods over several TREC benchmarks. Finally, it discusses potential applications that can utilize query diffi

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1820: Farmers and Labourers in Distress, pronounced over the early weeks of the current session and even some of those sympathetic to rural interests found the campaign annoying. Lauderdale, for example, pointed out that the recent crop of petitions was the work of George Webb Hall who ‘had taken so active a part in setting the agricultur

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Neurotransmitter Drugs that Affect Vertebrate Eye Movementsal function and neural development. This chapter will describe experiments that use GABAergic and glutamatergic drug application to understand the underlying mechanisms through which the visual system influences oculomotor behaviors. This discussion will describe some results using intracranial drug